body {
    margin: 0px auto;
    min-width: 320px;
    max-width: 540px;
    width: 100%;
    font: 400 16px/1.5 PingFangSC-regular,Tahoma,"Lucida Grande",Verdana,"Microsoft Yahei",STXihei,hei;
    overflow-x: hidden;
    background: #fafafc;
}
.header {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 224px;
    border-radius: 0px 0px 30% 30%;
}
.header::before {
    position: absolute;
    top: 140px;
    left: 0px;
    content: '广告';
    display: inline-block;
    height: 15px;
    width: 30px;
    text-align: center;
    font-size: 10px;
    border-radius: 0px 15px 15px 0px;
    background: rgba(0, 0, 0, .2);
    color: #8b9c9d;
}
.header .tu1 {
    width: 100%;
    height: 100%;
}
.header .search {
    position: fixed;
    top: 0px;
    /* 我们可以不要这个来解决  还可以用margin*/
    /* left: 0px; */
    min-width: 320px;
    max-width: 540px;
    width: 100%;
    height: 44px;
    display: flex;
}
.header .search div:nth-child(2) {
    width: 45px;
    height: 44px;
    text-align: center;
}
.header .search div:nth-child(2) a {
    color: #fff;
}
.header .search div:nth-child(2) a::before {
    content: '';
    display:block;
    margin-left: 12px;
    width: 22px;
    height: 22px;
    background: url(../jpg/search.png) no-repeat 0 -37px;
    background-size: 22px auto;
}
.header .search div:nth-child(1) {
    flex: 1;
    margin: 6px 15px;
    padding-left: 40px;
    line-height: 30px;
    border-radius:40px;
    background-color: #fff;
    color: #8c8c8c;
}
.header .search div:nth-child(1)::before {
    position: absolute;
    top: 12px;
    left: 27px;
    content: "";
    display: inline-block;
    width: 21px;
    height: 21px;
    background: url(../jpg/search.png) no-repeat 0 0;
    background-size: 24px auto;
}
.top_nav {
    display: flex;
    position: relative;
    height: 78px;
    margin: -64px 12px 10px 12px;
    border-radius: 10px;
    z-index: 22;
    background-color: #fff;
}
.top_nav li {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 14px;
    color: #222;
}
.top_nav li::before {
    content: '';
    margin-top: 5px;
    width: 40px;
    height: 40px;
    /* background-image: url(../jpg/tunav.png);
    background-repeat: no-repeat;
    background-size: 40px auto; */
    /* 这我们不能插入很多的图片   下面的是简写 */
    background:url(../jpg/tunav.png) no-repeat;
    background-size: 40px auto;
}
.top_nav li:nth-child(1)::before {
    background-position: 0 0;
}
.top_nav li:nth-child(2)::before {
    background-position: 0 -40px;
}
.top_nav li:nth-child(3)::before {
    background-position: 0 -80px;
}

.top_nav li:nth-child(4)::before {
    background-position: 0 -120px;

}
.top_nav li:nth-child(5)::before {
    background-position: 0 -160px;

}
.nav {
    display: flex;
    flex-direction: row;
    height: 230px;
    border-radius: 10px;
    overflow: hidden;
}
.nav div[class^="ti_nav"] {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.nav div:nth-child(3) {
    flex: 2;
}
.nav div:nth-child(1) {
    flex: 1.5;
}
.nav div:nth-child(1) a {
    text-align: left;
    background: no-repeat center bottom;
    background-size: 111px;
}
.nav div:nth-child(2) a {
    background: no-repeat left bottom;
    background-size: 37px;
    border-bottom: 1px solid #fff;
}
.nav div:nth-child(1) a span {
    display: inline-block;
    margin-left: 10px;
}
.nav div:nth-child(3) a {
    border-bottom: 1px solid #fff;
}
.nav div:nth-child(3) a:nth-child(3) {
    border: none;
}
.nav div a {
    flex: 1;
    text-align: center;
    line-height: 60px;
    color: #fefefd;
}
.nav div:nth-child(1) a:nth-child(1) {
    /* background: url(../jpg/jiadian\ 1.png) no-repeat center bottom;
    background-size: 111px; */
    /* 这样写 可以简化代码 吧相同的放在公共的里面 */
    background-image: url(../jpg/jiadian\ 1.png);
    background-color: #fa6254 ;
    border-right: 1px solid #fff;
    border-bottom: 1px solid #fff;
}
.nav div:nth-child(1) a:nth-child(2) {
    background-image: url(../jpg/jiadian\ 4.png);
    background-color:  #4c95ed;
    border-right: 1px solid #fff;
    border-bottom: 1px solid #fff;
} 
.nav div:nth-child(1) a:nth-child(3) {
    background-image: url(../jpg/jiadian\ 6.png);
    background-color: #3cc49e;
    border-right: 1px solid #fff;
} 
.nav div:nth-child(2) a:nth-child(1) {
    background-image: url(../jpg/jiadian\ 2.png);
    background-color: #fa6254 ;
}

.nav div:nth-child(2) a:nth-child(2) {
    background-image: url(../jpg/jiadian\ 5.png);
    background-color:  #4c95ed;

} 
.nav div:nth-child(2) a:nth-child(3) {
    background-image: url(../jpg/jiadian\ 7.png);
    background-color: #3cc49e;
    border: none;
} 
.nav div:nth-child(3) a:nth-child(1) {
    background: #ffd152 url(../jpg/jiadian\ 3.png) no-repeat right bottom;
    background-size: 166px;
    color:#a05416;
}
.nav div:nth-child(3) a:nth-child(n+2) {
    display: flex;
    flex-direction: row;
}
.nav div:nth-child(3) a:nth-child(n+2) div {
    flex: 1;
}
.nav div:nth-child(3) a:nth-child(n+2) div:nth-child(1) {
    border-right: 1px solid #fff;
}
.nav div:nth-child(3) a:nth-child(2) div {
    background-color: #52b8ed;
}
.nav div:nth-child(3) a:nth-child(3) div {
    background-color: #5dd06d;
}
.aside {
    margin-top: 10px;
    height: 120px;
    border-bottom: 1px solid #e5e5e5;
}
.aside ul {
    display: flex;
    flex-flow: row wrap;
}
.aside ul li {
    margin-top: 5px;
    flex: 20%;
}
.aside ul li a {
    font-size: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #383939;
}
.aside ul li a::before {
    content: "";
    margin-bottom: 5px;
    display: inline-block;
    width: 28px;
    height: 28px;
    background: url(../jpg/nav.png) no-repeat;
    background-size: 28px auto;
}
.aside ul li:nth-child(1) a::before {
    background-position: 0px 0px;
}
.aside ul li:nth-child(2) a::before {
    background-position: 0px -28px;
}
.aside ul li:nth-child(3) a::before {
    background-position: 0px -56px;
}
.aside ul li:nth-child(4) a::before {
    background-position: 0px -84px;
}
.aside ul li:nth-child(5) a::before {
    background-position: 0px -114px;
}
.aside ul li:nth-child(6) a::before {
    background-position: 0px -142px;
}
.aside ul li:nth-child(7) a::before {
    background-position: 0px -168px;
}
.aside ul li:nth-child(8) a::before {
    background-position: 0px -194px;
}
.aside ul li:nth-child(9) a::before {
    background-position: 0px -222px;
}
.aside ul li:nth-child(10) a::before {
    background-position: 0px -248px;
}
.logen {
    position: relative;
    margin: 5px 10px 0px;
    height: 44px;
    border-bottom: 1px solid #f5f5f5;
    overflow: hidden;
}
.logen h2 {
    display: inline-block;
    padding-top: 45px;
}
.logen h2::before {
    position: absolute;
    top: 50%;
    left: 0px;
    transform: translateY(-50%);
    content: "";
    display: inline-block;
    width: 79px;
    height: 15px;
    background: url(../jpg/text.png) no-repeat 0px -19px;
    background-size: 79px auto;
}
.logen h2::after {
    position: absolute;
    top: 50%;
    left: 85px;
    transform: translateY(-50%);
    content: "";
    display: inline-block;
    width: 36px;
    height: 15px;
    background: url(../jpg/gg.png) no-repeat;
    background-size: 36px auto;
}
.logen span {
    position: absolute;
    top: 50%;
    right: 0px;
    transform: translateY(-50%);
    padding: 0px 10px;
    width: 110px;
    height: 20px;
    font-size: 12px;
    border-radius: 10px;
    background: -webkit-gradient(linear,left top,right top,from(#ff4e63),to(#ff6cc9));
    color: #fff;
}
.logen span::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 9px;
    transform: translateY(-50%) rotateZ(45deg);
    width: 4px;
    height: 4px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
}
.zu_logen {
    display: flex;
}
.zu_logen div {
    flex: 1;
    height: 131px;
}
.zu_logen div:nth-child(1) {
    background: url(../jpg/section\ 1.jpg) no-repeat;
    background-size: 100% 100%;
}
.zu_logen div:nth-child(2) {
    background: url(../jpg/section\ 3.jpg) no-repeat;
    background-size: 100% 100%;
}
.zu_logen-tg {
    display: flex;
}
.zu_logen-tg div {
    flex: 1;
    height: 81px;
}
.tong div:nth-child(1) {
    background: url(../jpg/section\ 2.png) no-repeat;
    background-size: 100% 100%;
}
.tong div:nth-child(2) {
    background: url(../jpg/section\ 4.jpg) no-repeat;
    background-size: 100% 100%;
}
.tong1 div:nth-child(1) {
    background: url(../jpg/section\ 5.jpg) no-repeat;
    background-size: 100% 100%;
}
.tong1 div:nth-child(2) {
    background: url(../jpg/section\ 6.jpg) no-repeat;
    background-size: 100% 100%;
}

.tg div {
    position: relative;
}
.tg div::before {
    content: "广告";
    position: absolute;
    top: 100%;
    left: 0px;
    transform: translateY(-100%);
    height: 15px;
    width: 30px;
    font-size: 8px;
    text-align: center;
    line-height: 15px;
    border-radius: 0px 5px 0px 0px;
    background-color: #b3b3b3;
    color: #fff;
}
.footer {
    display: flex;
    margin-top: 10px;
    height: 100px;
    border-top: 1px solid #dcdcdc;
}
.footer a {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 60px;
    font-size: 14px;
    color: #3a4044;
}
.footer a::before {
    content: "";
    margin-bottom: 7px;
    width: 20px;
    height: 20px;
}
.footer a:nth-child(1)::before {
    background: url(../jpg/footer.jpg) no-repeat;
    background-size: 100% auto;
}
.footer a:nth-child(2)::before {
    background: url(../jpg/footer_xiazai.jpg) no-repeat;
    background-size: 100% auto;
}
.footer a:nth-child(3)::before {
    background: url(../jpg/search.png) no-repeat 0px -74px;
    background-size: 20px auto;
}